I am assuming you see the default page.(thus apache is running, Netscape is finding the page ok)
in your httpd.conf file:
Where is the DocumentRoot pointing to?
(hold that answer)

go to (do not make) a section
<Directory "(insert DocumentRoot here)">
#in that section should be
Options Indexes
#(at least, there can be more but who cares)

Restart the httpd process
get thee to a command prompt and "cd" to the DocumentRoot, Please don't tell me you forgot it already.
type at a command prompt (without the double quotes): "mv Index.html index.jl"